> > As spinlock debugging still does not work with the qeth driver I
> > want to pick up the discussion.
>
> Does something like the patch below work?
>
> But this all begs the question, what happens if you want to
> dig into the internals of a protocol which is built modular and
> hasn't been loaded yet?
>
> diff --git a/include/linux/init.h b/include/linux/init.h
> index 93dcbe1..8169f25 100644
> --- a/include/linux/init.h
> +++ b/include/linux/init.h
> @@ -95,8 +95,9 @@ #define postcore_initcall(fn) __define_
> #define arch_initcall(fn) __define_initcall("3",fn)
> #define subsys_initcall(fn) __define_initcall("4",fn)
> #define fs_initcall(fn) __define_initcall("5",fn)
> -#define device_initcall(fn) __define_initcall("6",fn)
> -#define late_initcall(fn) __define_initcall("7",fn)
> +#define net_initcall(fn) __define_initcall("6",fn)
> +#define device_initcall(fn) __define_initcall("7",fn)
> +#define late_initcall(fn) __define_initcall("8",fn)
>
> #define __initcall(fn) device_initcall(fn)
>
> diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
> index dc206f1..9803a57 100644
> --- a/net/ipv4/af_inet.c
> +++ b/net/ipv4/af_inet.c
> @@ -1257,7 +1257,7 @@ out_unregister_udp_proto:
> goto out;
> }
>
> -module_init(inet_init);
> +net_initcall(inet_init);
That's exactly the same thing that I tried to. It didn't work for me since I
saw "sometimes" the described rcu_update latencies.
Today I was able to boot the machine 30 times and just saw it once... Not very
helpful for debugging this :(
Btw.: I guess the linker scripts need an update too, so that the new
.initcall8.init section doesn't get discarded.
-
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